[Hibernate-issues] [Hibernate-JIRA] Closed: (HB-190) codegenerator creates SortedMap when it should create Map

[<leg...@at...>]

Message:

   The following issue has been closed.

   Resolver: Max Rydahl Andersen
       Date: Sat, 2 Aug 2003 6:12 AM

Is fixed
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View the issue:

  http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-190


Here is an overview of the issue:
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        Key: HB-190
    Summary: codegenerator creates SortedMap when it should create Map
       Type: Bug

     Status: Closed
   Priority: Major
 Resolution: DUPLICATE

    Project: Hibernate2
 Components: 
             toolset
   Versions:
             2.0 final

   Assignee: Max Rydahl Andersen
   Reporter: Will Glass-Husain

    Created: Sun, 13 Jul 2003 9:30 PM
    Updated: Sat, 2 Aug 2003 6:12 AM
Environment: Win XP/JDK 1.3.1

Description:
The code generator used a SortedMap to represent the following composite element.  

<class name="com.wgh.om.Rent" table="rent">
    <meta attribute="generated-class">com.wgh.om.base.Rent</meta>
    <id name="rent_id" type="long" unsaved-value="null">
      <generator class="identity"/>
    </id>

    <map name="amenities">
     <key column="rent_id" />
     <index column="name" type="string" />
     <composite-element class="com.wgh.om.RentAmenity">
      <meta attribute="generated-class">com.wgh.om.base.RentAmenity</meta>
        <property name="name"       type="string" not-null="true"/>
        <property name="category"      type="int" />
     </composite-element>
    </map>

</class>

When I saved the class with this code, I received a PropertyAccessException from cglib.  (with the optimizer turned off).

hs = HibernateWrapper.getNewSession(ctx);
o = new Rent();
o.setAmenities(new TreeMap());
hs.close();

hs = HibernateWrapper.getNewSession(ctx);
hs.saveOrUpdate(o);
hs.flush();
hs.connection().commit();
hs.close();


2003-07-13 19:29:04 DEBUG java.lang.ClassCastException: net.sf.hibernate.collection.Map
    at com.novogradac.valuation.om.RentMetaClass3.setPropertyValues(<generated>)
    at net.sf.hibernate.persister.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:158)
    at net.sf.hibernate.impl.SessionImpl.doSave(SessionImpl.java:724)
    at net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:620)
    at net.sf.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:1214)


The solution was to either (A) add sort="natural" to the map hbm.xml, or to change the generated code to use Map instead of SortedMap.

Recommendation-- have the codegenerator only use SortedMaps when the sorted attribute is present in the hbm.xml.




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